Washington DC residents took to Twitter on Saturday, outraged by how the city’s metro staff handled the latest accident with heavy smoke and mass evacuation. DC’s metro has been facing calls for a complete overhaul, as it poses a “daily danger” to riders.

Locals are used to feeling frustrated with their own metro system, but Saturday’s incident seemed to be the last straw, as hundreds of tweets were posted online, criticizing the metro and its staff.

Tenleytown and Friendship Heights Metro stations were evacuated after reports that an explosion in a mechanical room had caused a fire and heavy smoke.

Witnesses said there was lack of communication, which caused chaos, when flames and heavy smoke became visible and seemed to be entering one of the train.

Passengers in the train were not informed as to what was happening, nor were they told that the train was going to reverse and go back to Tenleytown station.

Riders described “losing confidence” in the system and beginning to “self-evacuate” for the fear of dying in the subway tunnel.

Making things worse was the incident fresh on the DC riders’ mind when a woman died in the metro just over a year ago in a smoke-filled subway car near the L’Enfant Plaza station.

Twitter users also said that the metro simply got “lucky” that there were no injuries this time around, warning that next time things might play out differently, unless the system improves.

Overall, residents’ tone remained very pessimistic, with hopeless messages that even incidents like the one on Saturday won’t force the metro to make significant upgrades.

Some responses shed light on how serious the problem appears to many people, with metro riders describing carrying a special list of items when using the subway, including respirators, masks, flashlights and comfortable shoes.